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A block of 4kg is kept …

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A block of 4kg is kept on ground the coefficient of friction between block and the ground is 0.80 . An external force of magnitude 30 N is applied parallel to the ground the resultant force exerted by the block on ground is

    • Posted by Einstein Physics Classes Physics Classes 2 years ago

    Bihar Board > Class 12 > Physics
    • 1 answers

    Preeti Dabral 2 years ago

    Explanation: N = mg = 40
    (fs )max =  μN = (0.8) (40) = 32 
    f s = ext. force = 30
    R2 = N2 + fs 2 = (50)2 
    R = 50 N.

    2Thank You

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